Develop Bugs

[Q] Black Screen

On my HTC One V I unlock bootloader and rooted it successfully. It was working fine, but about 1-2 weeks later, when I was chatting with my friends on Messenger, it was starting to lag like hell until i couldn't do antyhing. I tried to turn it off and on with the power button. When I turned it on, firstly the logo "Quietly Brilliant" appeared and then...there was just a black screen. The phone was still turned on, but just with a black screen.. a slightly lighter black screen. I tried to turn it on and of. I can go to fast boot mode with Volume down+power button. I tried factory reset, but there was still the black screen. I send it to the manufacture, but they said, that the hardware is destroyed, because I've changed it. I think they mean I changed it with root and unlocking the bootloader...but I think that's not true? I don't think root or unlocking bootloader can change hardware. Yet I tried to unroot and relock the bootloader, but I can't do It if I can't connect my phone to my pc anymore. So my questions are:
1)How could I change the hardware?
2)How can I connect my phone to pc?
3)Is there a way to save my phone?
4)How does the manufacture know, that my phone is rooted when it can't be turned on, or connected to pc
5)Do they just lie about the hardware, so I must pay for it?

first of all, are you gsm or cdma? (do you have a sim?) If you can access bootloader, then you can fix your phone (99,9% of times). all you need to do is flash another rom with the correct kernel

mr_nooby said:
first of all, are you gsm or cdma? (do you have a sim?) If you can access bootloader, then you can fix your phone (99,9% of times). all you need to do is flash another rom with the correct kernel
Click to expand...
Click to collapse
Yes, I have s sim..so I have gsm i think? Right now, the manufacture is sending me back my phone. What is the bootloader exactly? Do you mean the combination of the keys volume down+power button?
If yes and I can acces to bootloader, how can I flash the rom with the correct kernel? Does it mean, my phone will be back to normal like it was at the start?
If I can't acces to bootloader, is there still a way to repair my phone?
btw I can't connect my phone to my pc...at least It didn't worked.

Don't worry, when you get back your phone tell me. If you can access your bootloader we will get your phone back to normal :thumbup:

mr_nooby said:
Don't worry, when you get back your phone tell me. If you can access your bootloader we will get your phone back to normal :thumbup:
Click to expand...
Click to collapse
Thank you very much!! How can I contact you when I get my phone back?

lddangsta said:
Thank you very much!! How can I contact you when I get my phone back?
Click to expand...
Click to collapse
first thing, when you get your phone back access the bootloader, hit fastboot and connect the phone to the pc (then after some seconds try vol up or down), it should say fastboot usb. tell me if it does (write it here)

mr_nooby said:
first thing, when you get your phone back access the bootloader, hit fastboot and connect the phone to the pc (then after some seconds try vol up or down), it should say fastboot usb. tell me if it does (write it here)
Click to expand...
Click to collapse
My phone is back. How can I access bootloader?

lddangsta said:
My phone is back. How can I access bootloader?
Click to expand...
Click to collapse
When starting your phone, hold the VOLUME DOWN BUTTON and Power buttons together

Seraz007 said:
When starting your phone, hold the VOLUME DOWN BUTTON and Power buttons together
Click to expand...
Click to collapse
When It's turned off, I hold the volume down button and power button together for 10 seconds. Then I let it go, but there's no bootloader mode. Before I sended it to the manufacture, I somehow did it, but I don't remember how.

lddangsta said:
When It's turned off, I hold the volume down button and power button together for 10 seconds. Then I let it go, but there's no bootloader mode. Before I sended it to the manufacture, I somehow did it, but I don't remember how.
Click to expand...
Click to collapse
Okay I got it. I couldn't access to bootloader because my phone was connected to my pc

mr_nooby said:
first thing, when you get your phone back access the bootloader, hit fastboot and connect the phone to the pc (then after some seconds try vol up or down), it should say fastboot usb. tell me if it does (write it here)
Click to expand...
Click to collapse
Yesm It said fastboot usb. What now?

mr_nooby said:
first thing, when you get your phone back access the bootloader, hit fastboot and connect the phone to the pc (then after some seconds try vol up or down), it should say fastboot usb. tell me if it does (write it here)
Click to expand...
Click to collapse
Yes, it said fastboot usb. What now?

Hey sorry I have to go to school now.. I'll write a little guide as soon as I come back, be patient. In order you have to unlock and root (if you haven't done it already), flash a recovery (I suggest twrp recovery, you can find it in android development or original android development-This also only if you don't have that already), factory reset from recovery, mount usb storage, copy rom to your phone, unmount, flash the rom, reboot into bootloader and flash the correct kernel found in the rom thread. This should work. I'll give you a hit when I get back tough.

mr_nooby said:
Hey sorry I have to go to school now.. I'll write a little guide as soon as I come back, be patient. In order you have to unlock and root (if you haven't done it already), flash a recovery (I suggest twrp recovery, you can find it in android development or original android development-This also only if you don't have that already), factory reset from recovery, mount usb storage, copy rom to your phone, unmount, flash the rom, reboot into bootloader and flash the correct kernel found in the rom thread. This should work. I'll give you a hit when I get back tough.
Click to expand...
Click to collapse
Its bootloader is unlocked and it's rooted. Now for the recovery i found this:
http://www.teamw.in/project/twrp2/119
They say I should download the newest recovery img, access bootloader, select fastboot, plug the device into computer and run the command:
fastboot flash recovery recoveryfilename.img into command prompt right?

Yes its right. Then you boot into recovery, and mount usb storage and with the pc copy a rom into the sd card, then unmount, from the recovery go to wipe - > factory reset, once it's done go to install and select the zip of the rom. When it's done, go back to the home page of recovery, and from there press reboot bootloader. Now do fastboot, and from the pc, put kernel in fastboot folder (the same place where you put your recovery to flash it), open cmd and type fastboot flash boot nameofkernel.img, wait for it to complete, reboot and enjoy!

mr_nooby said:
Yes its right. Then you boot into recovery, and mount usb storage and with the pc copy a rom into the sd card, then unmount, from the recovery go to wipe - > factory reset, once it's done go to install and select the zip of the rom. When it's done, go back to the home page of recovery, and from there press reboot bootloader. Now do fastboot, and from the pc, put kernel in fastboot folder (the same place where you put your recovery to flash it), open cmd and type fastboot flash boot nameofkernel.img, wait for it to complete, reboot and enjoy!
Click to expand...
Click to collapse
When I type "fastboot flash recovery recoveryfilename.img" into the command prompt..it tells me:'fastboot' is not recognized as an internal or external command, operable program or batch file

Have you downloaded the fastboot folder? And have you located it in cmd?

lddangsta said:
When I type "fastboot flash recovery recoveryfilename.img" into the command prompt..it tells me:'fastboot' is not recognized as an internal or external command, operable program or batch file
Click to expand...
Click to collapse
i think you'll be better off flashing recovery by the all in one toolkit

mr_nooby said:
Have you downloaded the fastboot folder? And have you located it in cmd?
Click to expand...
Click to collapse
I have a folder named Android an there's: adb.exe, AdbWinApi.dll, fastboot.exe, Unlock_code.bin
Do you mean this?

Yes, now create a folder on the desktop called fastboot and copy those files in that folder. Then in cmd type cd desktop (enter) cd fastboot (enter), put the recovery in that folder, connect the phone on fastboot usb and type the recovery command

Z00A stuck on Error! msg during boot, can't access recovery

So here's the deal, I tried to format the cache partition of a stock, non-rooted and non-unlocked bootloader Zenfone 2 (Z00A) through recovery, and it somehow failed/got stuck. After about 1h, I shut down the phone via long-pressing the power button and now it won't boot.
Booting it just leads to an "error!' message and stay there. Trying to go back to recovery does the same thing, I can get to the initial fastboot screen, but selecting recovery mode and pressing power+vol up after the reboot doesn't lead to recovery at all. Instead, every 5 or 10 seconds, the screen clears to black for 1 sec and the same error message shows up.
I tried to get access to it through ADB, but it won't show up in the device list under either the fastboot screen or the Error! message screen on which it stays stuck. Also, the phone was setup so that it didn't allow USB debugging, but I doubt that matters, given that it can't even load Android at all.
Is there something I can do about it? Any tip is greatly appreciated, I looked around XDA and Reddit but didn't find anything that really helped.

When you get to the Error screen, hold power and press up volume button. It should get you to recovery...
You can also clear the cache in fastboot mode using the command "fastboot erase cache". It will ask if you want to format/erase cache, say yes and it should clear your cache in a few seconds...

ultramag69 said:
When you get to the Error screen, hold power and press up volume button. It should get you to recovery...
You can also clear the cache in fastboot mode using the command "fastboot erase cache". It will ask if you want to format/erase cache, say yes and it should clear your cache in a few seconds...
Click to expand...
Click to collapse
Thanks, I had tried various variations of that approach but the issue was a bit more complex than that. In the bootloader, the phone was detected by Windows and drivers from Asus installed properly. ADB wouldn't list the phone, but fastboot did. However, any operation by fastboot was denied access because USB debugging was not enabled prior to the phone going down. Otherwise, as you mentioned, fastboot erase cache would have worked fine.
In the end, I found another post on XDA by Theja which linked to a post in Spanish. The modified ADB and fastboot packet there contains a batch file that manages to bypass this issue and installs CWR, from which clearing the cache is possible. Upon reboot, Asus replaces CWR with the original recovery and things look back to normal.

Sweet, as long as you got it back up and running...

ultramag69 said:
Sweet, as long as you got it back up and running...
Click to expand...
Click to collapse
Hehe, thanks. I'm pretty happy indeed, was already considering the need for a new phone.
However, I must say that finding this toolset worries me a little bit. I thought the whole point of disabling USB debugging was to ensure that people can't perform low-level operations on the phone via fastboot/adb. In this case, this protection is somehow bypassed. I didn't have time to read through the entire batch file, nor am I proficient-enough in Android to make sense of it all, but I wonder how it was done...
In any case, I now have USB debugging left on. It increases convenience and the ability to recover things if problems occur, and it seems like the security benefits are not that strong anyways.

Honor 7x with Lineage and TWRP, stuck in limbo

Hi all,
I installed TWRP on my Honor 7x, that went well.
Yesterday I decided to try to get Lineage working so:
- I installed EMUI 8, that went pretty smooth
- I installed Lineage OS 15.1. (without GApps)
- I flashed TWRP.
The issue I have now is that:
1) I can't install any APK in Lineage. Probably needs a factory reset/dalvik cache wipe.
2) I can't boot into TWRP. It stays stuck on the splash screen forever. This also means I can't install OpenGapps, SuperUser access (afaik), or anything else that requires root.
3) The bootloader is saying "FRP: Locked", which means I can't flash a new TWRP or a different ROM. When I try it fails with "command not allowed"
3) "fastboot oem unlock" fails saying I need to enable it in the developer options, but it's grayed out in the developer options because it's already unlocked.
4) I wanted to try the "dload" method but I can't find a good explanation on how to do it, and Huawei recently took all their downloads down, which means I can't find any UPDATE.app even if I knew how.
5) The other solution that *might* work is using "fastboot oem frp-unlock", but I need an unlock code for that (I assume the same one that you request for an OEM unlock from Huawei), and Huawei closed down the site that generated the codes.
So I'm stuck in a weird limbo where I can't move forward (install Gapps and use my phone as normal) nor backwards (go back to EMUI8).
Does anyone have any idea how I can fix this situation?

Shadowsalyer said:
Hi all,
I installed TWRP on my Honor 7x, that went well.
Yesterday I decided to try to get Lineage working so:
- I installed EMUI 8, that went pretty smooth
- I installed Lineage OS 15.1. (without GApps)
- I flashed TWRP.
The issue I have now is that:
1) I can't install any APK in Lineage. Probably needs a factory reset/dalvik cache wipe.
2) I can't boot into TWRP. It stays stuck on the splash screen forever. This also means I can't install OpenGapps, SuperUser access (afaik), or anything else that requires root.
3) The bootloader is saying "FRP: Locked", which means I can't flash a new TWRP or a different ROM. When I try it fails with "command not allowed"
3) "fastboot oem unlock" fails saying I need to enable it in the developer options, but it's grayed out in the developer options because it's already unlocked.
4) I wanted to try the "dload" method but I can't find a good explanation on how to do it, and Huawei recently took all their downloads down, which means I can't find any UPDATE.app even if I knew how.
5) The other solution that *might* work is using "fastboot oem frp-unlock", but I need an unlock code for that (I assume the same one that you request for an OEM unlock from Huawei), and Huawei closed down the site that generated the codes.
So I'm stuck in a weird limbo where I can't move forward (install Gapps and use my phone as normal) nor backwards (go back to EMUI8).
Does anyone have any idea how I can fix this situation?
Click to expand...
Click to collapse
small chance you enable root from developer options. (i think it will be adb only)
if so , maybe can use adb shell and "dd" to write recovery to correct partition.
problem is many of the available twrp do not boot on custom rom .
example code. (if you do wrong , it may be bad)
Code:
dd if=/ext_sdcard/twrp_Recovery_ramdisk.img of=/dev/block/mmcblk0p32

It seems like I'm allowed to use dd in ADB shell, but before I run it, what do you mean by " problem is many of the available twrp do not boot on custom rom . "? I thought recovery was independent of the ROM? And does it mean flashing twrp like that could brick my phone?

Shadowsalyer said:
It seems like I'm allowed to use dd in ADB shell, but before I run it, what do you mean by " problem is many of the available twrp do not boot on custom rom . "? I thought recovery was independent of the ROM? And does it mean flashing twrp like that could brick my phone?
Click to expand...
Click to collapse
Like what you have , twrp stuck on splash screen

I managed to unlock the FRP with DC-unlocker. Sucks that it costs money but it worked!
Now Im stuck in a TWRP boot loop though.

Shadowsalyer said:
I managed to unlock the FRP with DC-unlocker. Sucks that it costs money but it worked!
Now Im stuck in a TWRP boot loop though.
Click to expand...
Click to collapse
At this point you should have access to fastboot though, right? I'd try a different TWRP instead. Perhaps try this one: https://drive.google.com/file/d/1ZYo7Ndte3vlLcUSadD6jIgfBi1oxa0Pb/view?usp=drivesdk

Just to clarify, it gets stuck on TWRP splash screen. When I turn off the phone, it immediately boots up again into TWRP. I tried getting into fastboot mode with all kinds of combinations of button presses, but no luck. Not even Volume Up + USB cable works

smokinjoe2122 said:
At this point you should have access to fastboot though, right? I'd try a different TWRP instead. Perhaps try this one: https://drive.google.com/file/d/1ZYo7Ndte3vlLcUSadD6jIgfBi1oxa0Pb/view?usp=drivesdk
Click to expand...
Click to collapse
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.

Shadowsalyer said:
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.
Click to expand...
Click to collapse
I have seen this happen before , solution was to wait for dead battery, or disassemble to unplug battery
---------- Post added at 04:51 PM ---------- Previous post was at 04:47 PM ----------
Shadowsalyer said:
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.
Click to expand...
Click to collapse
This is because after the frp unlock, it needed to see a factory reset, and it usually needs to be done with stock recvery.
So will have to wait till battery is dead and and plug in usb while holding volume button. Should then load to fastboot. Where it is best to flash stock recovery to clear the recovery bootloop. The bootloop is do to the fact yo unlocked frp and now phone needs to wipe/data

Shadowsalyer said:
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.
Click to expand...
Click to collapse
it sucks this happened to yu but im glad i am not the only one that dc-unlocker deleted my fastboot after i unlocked the frp and i cant boot fastboot for nothing if you find a solution please contact me. my phone is doing the exact same thing booting straight too twrp no mater what combinations i use

dcraffam said:
it sucks this happened to yu but im glad i am not the only one that dc-unlocker deleted my fastboot after i unlocked the frp and i cant boot fastboot for nothing if you find a solution please contact me. my phone is doing the exact same thing booting straight too twrp no mater what combinations i use
Click to expand...
Click to collapse
i just took mine apart and discconected the battery and still no luck that program deleted my fastboot

Please can you tell me the process to install twrp I have the L24

I waited all the way till the battery drained, stuck in the USB, and it booted to ROM! Sadly it immediately shut off again because the battery is dead (even with keeping the USB in). I'm going to keep trying though.

I can't get into fastboot mode. I can get into the ROM by letting the battery drain completely on the TWRP splashscreen, and then sticking in the USB cable. However, no button combination or "adb reboot bootloader" or rebooting to bootloader from the ROM brings me to the bootloader. I wonder if it's still there. Any ideas?

Shadowsalyer said:
I can't get into fastboot mode. I can get into the ROM by letting the battery drain completely on the TWRP splashscreen, and then sticking in the USB cable. However, no button combination or "adb reboot bootloader" or rebooting to bootloader from the ROM brings me to the bootloader. I wonder if it's still there. Any ideas?
Click to expand...
Click to collapse
Seems to be a f-up situation either way.
You have adb DD available, found out before.
Don't know if maybe flashing stock recovery is good idea at this point.
I think fastboot.img can be flashed with DD too, but don't try till someone can confirm.
If flash stock recovery clears the loops, maybe best to do full-ota manual flashing.

I managed to get an UPDATE.APP file and extract fastboot.img from it, as well as all the other .img files. If someone can tell me what to flash and how (with dd), I think Im set.

Shadowsalyer said:
I managed to get an UPDATE.APP file and extract fastboot.img from it, as well as all the other .img files. If someone can tell me what to flash and how (with dd), I think Im set.
Click to expand...
Click to collapse
Fastboot.img is the large part the bootloader. If flashing it goes bad, might be dead phone after, just rember that.
Will add a list of partition names and command s for you soon.
here is a list of oreo partitions and there /dev/blk/** number
and here is an example of code to save images with dd assuming you put the images on your extrnal-sdcard in folder called oreo-images
Code:
dd if=/dev/block/mmcblk0p5 of=/mnt/ext_sdcard/oreo-images/fastboot.img
Do that save first and compare the md5 of the file from update.app to this file.
or just check the md5 before making the copy
Code:
adb shell md5sum /dev/block/mmcblk0p5
If you are conviced you need to flash the images, here is example of writing the image assuming files are in sdcard folder oreo-update-images
Code:
dd if=/mnt/ext_sdcard/oreoupdate-images/fastboot.img of=/dev/block/mmcblk0p5
As I have said, this might be bad advise , I have not done fastboot.img flashing before. But on other devices it is same as lk.img or uboot.img, There is danger in flashing it incorrectly. That is why my suggestion was to flash no-check-recovery and do manael update with "echo -update_package" commands.
Along with the statement that fastboot.img is similar to lk.img or uboot.img on other phones, Your fastboot cannot be gone. because phone boots.
but do let us know how it goes.

I agree it would be better to flash recovery if possible. I assume I need the NoCheck-Recovery image from this thread? https://forum.xda-developers.com/honor-7x/how-to/manual-update-to-oreo-beta-emui-8-bnd-t3767044
And what partition do I have to flash it to? I'm guessing either /dev/block/mmcblk0p28 (erecovery ramdisk) or /dev/block/mmcblk0p32 (recovery ramdisk)? I'm not sure what the difference is between erecovery and normal recovery.
(didn't flash fastboot yet, wanted to see if recovery was doable).

Shadowsalyer said:
I agree it would be better to flash recovery if possible. I assume I need the NoCheck-Recovery image from this thread? https://forum.xda-developers.com/honor-7x/how-to/manual-update-to-oreo-beta-emui-8-bnd-t3767044
And what partition do I have to flash it to? I'm guessing either /dev/block/mmcblk0p28 (erecovery ramdisk) or /dev/block/mmcblk0p32 (recovery ramdisk)? I'm not sure what the difference is between erecovery and normal recovery.
(didn't flash fastboot yet, wanted to see if recovery was doable).
Click to expand...
Click to collapse
To recovery_ramdisk. 32
What about check md5 of fastboot partition, that will be helpful to know if it did get wiped out.?

Hmm seems like I'm not allowed to use dd after all:
HWBND-H:/ $ dd if=/storage/7C96-7E17/BND-RECOVERY-NoCheck.img of=/dev/block/mmcblk0p32
dd: /dev/block/mmcblk0p32: Permission denied
And here I was thinking I was close to solving it...
Also can't run md5sum on the fastboot partition, since that needs root as well.

Phone might be bricked. Need help to find a solution!

Hello everyone! Complete dumbass here!
I was following the guide to root my razer phone. I've had it for a couple months, and decided to root it. I followed the guide here https://forum.xda-developers.com/razer-phone/how-to/twrp-magisk-fullproof-guide-razers-wifi-t3756137
After a couple bumps in the road, such as fastboot commands not working, not being recognized, etc. I finally was able to unlock bootloader and install twrp. But it was #9 that got me stuck again.
"9.) Once in recovery, go to the install button, and select Install Zip, and select Magisk-v16.0.zip."
In recovery, adb devices and fastboot devices yielded no devices attached. Doing a search, I came across another forum post where it states the sdcard is encrypted and can't be accessed in twrp, and the fix is to do something like "Wipe>Wipe Data> Type Yes" and that should factory set the card. I did this and rebooted the device. I waited for a half hour for the animated PixelFloatingInACircle logo to be done with it's floating in a circle, but ended up going to bed and letting it die. Woke up this morning, plugged it in, got the razer logo splash screen with the orange text telling me of my impending doom, then went back to the animation. I let my dog out and came back and it was still on. I unplugged it and am letting it die again to see if there's another solution.
I'm wondering if anyone else came across this issue, and if so, how did they fix it? Any help would be appreciated.

Use the factory images in the developer portal. You have to manually install the fastboot driver or you won't see the phone in fastboot devices. After that you can flash_all.bat.
PS: if you just want root you can use magisk installer to patch the boot image (from the factory images) and then flash the patched_image.img. That's it, now you have root via magisk

waiflih said:
Use the factory images in the developer portal. You have to manually install the fastboot driver or you won't see the phone in fastboot devices. After that you can flash_all.bat.
PS: if you just want root you can use magisk installer to patch the boot image (from the factory images) and then flash the patched_image.img. That's it, now you have root via magisk
Click to expand...
Click to collapse
The problem is when I try to enter download/recovery mode after charging the battery a little, it doesn't go to that menu. Instead, it skips right to the particle logo, and that's where it hangs.
The only guide I saw was the one I listed. Is there a guide for this magisk installer?(Ya know, in case I figure the first problem out, so I might try my hand at potentially creating another)

i think there is a way to hard reboot the phone, so you can do that and then hold the vol- key to start in bootloader mode when it reboots.
gonna check the correct buttons.
Edit: the button combination is power+vol+ for about 10-15 seconds, and the phone will reboot. You have to connect the phone via usb cable (before rebooting) to the computer (the only thing i'm not sure is if you have to have the fastboot drivers in the pc installed previously or if you can do it after entering fastboot) and just after the screen goes black while hard rebooting you have to release all the buttons and then press and hold the vol- button. The combination of vol- and the usb cable on boot seems to trigger fastboot mode.
I think the guide is in the guides forum, but the way it worked for me was without twrp:
- install magisk manager from this link -> https://github.com/topjohnwu/MagiskManager/releases/download/v5.7.0/MagiskManager-v5.7.0.apk
- push your boot.img (the easiest way is getting it from the factory image corresponding to the firmware you are using) to the sdcard
- open magisk manager -> install -> patch image only -> boot.img
- this will generate a patched_boot.img in /sdcard/MagiskManager
- copy that file to your pc
- go to fastboot and flash that patched image: fastboot flash boot patched_boot.img
- enjoy root, and you can use magisk hide for apps that don't like root
Regards

waiflih said:
i think there is a way to hard reboot the phone, so you can do that and then hold the vol- key to start in bootloader mode when it reboots.
gonna check the correct buttons
Click to expand...
Click to collapse
Tried this originally after I let it die the first time. It still boot to the animation logo.

Bloodeagle said:
Tried this originally after I let it die the first time. It still boot to the animation logo.
Click to expand...
Click to collapse
Read the edit, I found that the trigger is having the usb cable connected to the pc. Try that, or you can also try to adb while the device is booting (particles logo). Sometimes adb is responsive even when booting. There you can try to adb reboot bootloader

waiflih said:
i think there is a way to hard reboot the phone, so you can do that and then hold the vol- key to start in bootloader mode when it reboots.
gonna check the correct buttons.
Edit: the button combination is power+vol+ for about 10-15 seconds, and the phone will reboot. You have to connect the phone via usb cable (before rebooting) to the computer (the only thing i'm not sure is if you have to have the fastboot drivers in the pc installed previously or if you can do it after entering fastboot) and just after the screen goes black while hard rebooting you have to release all the buttons and then press and hold the vol- button. The combination of vol- and the usb cable on boot seems to trigger fastboot mode.
I think the guide is in the guides forum, but the way it worked for me was without twrp:
- install magisk manager from this link -> https://github.com/topjohnwu/MagiskManager/releases/download/v5.7.0/MagiskManager-v5.7.0.apk
- push your boot.img (the easiest way is getting it from the factory image corresponding to the firmware you are using) to the sdcard
- open magisk manager -> install -> patch image only -> boot.img
- this will generate a patched_boot.img in /sdcard/MagiskManager
- copy that file to your pc
- go to fastboot and flash that patched image: fastboot flash boot patched_boot.img
- enjoy root, and you can use magisk hide for apps that don't like root
Regards
Click to expand...
Click to collapse
Progress! Got it into download mode. I have the boot.img I got from razer, should I push that and see if it boots normally?

Bloodeagle said:
Progress! Got it into download mode. I have the boot.img I got from razer, should I push that and see if it boots normally?
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Click to collapse
As you already wiped the data partition, you should use the flash_all script. But yes, you can try flashing each partition

waiflih said:
As you already wiped the data partition, you should use the flash_all script. But yes, you can try flashing each partition
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Click to collapse
I moved the flash_all script into the tools folder and after a little while, the phone booted up into setup! After a couple taps, I've realized the wifi isn't working, which I know is a known issue. I'm gonna let it sit for the night and finish it in the morning!
EDIT : Soooo, I know I said I was going to bed, but I decided to fix the wifi issue, which in turn, also rooted my phone. I've downloaded the root checker, and it confirms it! Thanks so much Waiflih! You rock!

Hi guys, it seems I'm having the same problem and basically after unlocking my bootloader and flashing twrp to both of my slots I'm stuck on "Your device has been unlocked and can't be trusted" booting up infinitely.
The USB plug in and holding the volume - button doesn't bring up "download mode" and no matter what buttons I try and press on my phone my computer doesn't recognize ANYTHING connected to it anymore.
Bloodeagle, how did you manage to get "download mode" back onto your phone? it seems like mine refuses to do anything like download mode.

saberhashemi said:
Hi guys, it seems I'm having the same problem and basically after unlocking my bootloader and flashing twrp to both of my slots I'm stuck on "Your device has been unlocked and can't be trusted" booting up infinitely.
The USB plug in and holding the volume - button doesn't bring up "download mode" and no matter what buttons I try and press on my phone my computer doesn't recognize ANYTHING connected to it anymore.
Bloodeagle, how did you manage to get "download mode" back onto your phone? it seems like mine refuses to do anything like download mode.
Click to expand...
Click to collapse
Have you tried holding few combinations of different butt9ns for a minute or two to see if that results in you getting in downl9ad mode?

Question 9 Pro crashed to lockscreen on loop, forced reboot and will no longer boot

hey, i have a completely stock 9 pro, i was texting someone and sending them pictures from the night but while i was doing that the phone suddenly crashed to the lock screen over and over again. so i just hard rebooted it since it was completely unresponsive and just crashing on the lock screen and now it will not even boot up it just shows the oneplus log and a field to put in a password and after entering the password its looking to format the phone and probably factory reset the whole device i was hoping that there would be some way to use adb to get my photos back since i didnt get a chance to save or send them and it would be a real bummer if they were gone. not enough to pay 1000s of dollar but enough that i would spend time playing with adb to recover them. im very familiar with commandline and adb but i dont know of a way to get in without unlocking the bootloader first.... any help would be very much appreciated.

Can you manage to boot into fastboot and try some things there?
Setup platform tools (let me know if you do not have it setup) and then boot into fastboot. Connect your device to your computer and try out the following commands :
fastboot getvar current-slot
If this outputs something like :
current-slot: b
Then run the following command :
fastboot --set-active=a
otherwise, run the following command :
fastboot --set-active=b
After this is done, reboot your device by running :
fastboot reboot

Like the original poster above. my completely stock OP9P (with all official updates installed) is stuck in a bool loop in which it displays the 1+ logo for a fraction of a sec, then reboots. I believe this was the result of the phone being unlocked in my pocket and something happening. When I pulled the phone out of my pocket, there was a message about a corruption in the OS on the screen.
I am able to get it to boot to fastboot by holding the Vol +&- buttons during the boot cycle, but I don't know how to recover the OS.
Can anyone help guide me or point me at a thread with tools that I can try?
Thanks, in advance.

I never set bios or lockscreen passwords, or encrypt data drives. You are the one most likely to be locked out, sometimes through no fault of your own. People will steal these devices regardless if they're locked or not; physical security is the only type of security that works.

wjcrabtree said:
Like the original poster above. my completely stock OP9P (with all official updates installed) is stuck in a bool loop in which it displays the 1+ logo for a fraction of a sec, then reboots. I believe this was the result of the phone being unlocked in my pocket and something happening. When I pulled the phone out of my pocket, there was a message about a corruption in the OS on the screen.
I am able to get it to boot to fastboot by holding the Vol +&- buttons during the boot cycle, but I don't know how to recover the OS.
Can anyone help guide me or point me at a thread with tools that I can try?
Thanks, in advance.
Click to expand...
Click to collapse
When you enter the Bootloader (fastboot as you call it), and by navigating with the volume buttons, choose the "reboot to recovery" and confirm with the power button. This will reboot you to the recovery, and from there you can again use the Volume buttons to navigate and choose to wipe your data/phone.
This will format your internal storage, so your data is lost, but it will most likely help you with the issue you have. Another solution would be to use the MSM tools and "unbrick" the phone from EDL. Just by getting into recovery and formating your phone should do the trick, if not, MSM will fix it since it is the unbrick tool.

ekin_strops said:
When you enter the Bootloader (fastboot as you call it), and by navigating with the volume buttons, choose the "reboot to recovery" and confirm with the power button. This will reboot you to the recovery, and from there you can again use the Volume buttons to navigate and choose to wipe your data/phone.
This will format your internal storage, so your data is lost, but it will most likely help you with the issue you have. Another solution would be to use the MSM tools and "unbrick" the phone from EDL. Just by getting into recovery and formating your phone should do the trick, if not, MSM will fix it since it is the unbrick tool.
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Click to collapse
Thank you for the response. Sorry for the bad nomenclature. It's been a long time since I have used anything except stock. (Go all the way back to the custom ROMs on my Note 4)
I've tried that. Booting to recovery puts it right back into the boot loop.
It seems like there's a way to sideload the stock OS, but I can't find a cohesive, step-by-step guide that'll walk a N00B like me through.

wjcrabtree said:
Thank you for the response. Sorry for the bad nomenclature. It's been a long time since I have used anything except stock. (Go all the way back to the custom ROMs on my Note 4)
I've tried that. Booting to recovery puts it right back into the boot loop.
It seems like there's a way to sideload the stock OS, but I can't find a cohesive, step-by-step guide that'll walk a N00B like me through.
Click to expand...
Click to collapse
There is no way to sideload it with a locked bootloader. Your only way out now is the MSM tool.
Follow these two links:
https://forum.xda-developers.com/t/op9pro-repository-of-msm-unbrick-tools-tmo-eu-glo-in.4272549/
https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4180837/

wjcrabtree said:
Thank you for the response. Sorry for the bad nomenclature. It's been a long time since I have used anything except stock. (Go all the way back to the custom ROMs on my Note 4)
I've tried that. Booting to recovery puts it right back into the boot loop.
It seems like there's a way to sideload the stock OS, but I can't find a cohesive, step-by-step guide that'll walk a N00B like me through.
Click to expand...
Click to collapse
You can't do a factory reset from there?
It's rare but a SEU can corrupt any part of the flash memory. It causes no physical damage but the altered memory cells will need reset.

I think the best way to recover is MSM tool for youre specific model phone.
My phone power off by it self after watching a video on a received link with whatsapp.
Nothing workt beside MSM. I factory reset, downgrade rom. flash-reflash rom's.
MSM wipe all in youre phone.

ekin_strops said:
There is no way to sideload it with a locked bootloader. Your only way out now is the MSM tool.
Follow these two links:
https://forum.xda-developers.com/t/op9pro-repository-of-msm-unbrick-tools-tmo-eu-glo-in.4272549/
https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4180837/
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Click to collapse
Thank you so much!!
Sorry for the slow reply, but I haven't had time to deal with the problem because of work. I'll be looking into this today.

ekin_strops said:
There is no way to sideload it with a locked bootloader. Your only way out now is the MSM tool.
Follow these two links:
https://forum.xda-developers.com/t/op9pro-repository-of-msm-unbrick-tools-tmo-eu-glo-in.4272549/
https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4180837/
Click to expand...
Click to collapse
Ho Lee Sheet! I finally got around to dedicating serious time to working on this.
I had to jack-around with it quite a bit to get Windows 11 to load the proper drivers so that the phone would be recognized, but: BOOM! BACK IN BUSINESS!
Thank you so much for the guidance.